Fuse-holder



PVR. OLIVER.

FUSE HOLDER.

APPLICATION FILED APR. 5. I920.

' Patented May 31, 1921.

2 SHEETSSHEET 1..

mu 02W A'rroR'NEY UNITED "STATES PAUL R. OLIVER, OF AKRON, OHIO.

.FUSE-I-IOLDER.

Specification of Letters Patent.

Patented May 31, 1921.

Application filed April 5, 1920. Serial No. 371,539.

To all to 7mm it may concern- Be it known that 1, PAUL R. OLIVER, a citizen of the United States, residing at Akron, in the county of Summit and State of Ohio, have invented new and useful Improvements in Fuse-Holders, of which the following is a specification.

This invention relates to tools and has for its object the provision of a device for handling cartridge fuses even though they may be located in comparatively inaccessible places such as upon the ceiling or other high elevation, the device being so constructed as to grip and hold firmly a cartridge while it is being placed in position and being so constructed that by a simple movement it may be subsequently disengaged from the fuse.

An important object is theprovision of a device of this character which will be very safe in use as practically eliminating any danger to the operator from the possibility of shock as the device is equipped with a handle so that the operator need not place his hands near the terminals between which the fuse is placed.

An additional object is the provision of a device of this character in which the gripping member is detachably mounted upon the handle, it being intended in actual practice to provide a plurality of gripping members of different sizes, any one of which may be engaged upon the handle, the necessity for different sizes resulting from the fact that cartridge fuses are of varying dimen-' sions.

A further object is the provision of a device of this character which will be simple and inexpensive in manufacture, easy to use, efficient in operation, durable in service, and a general improvement in the art.

With the above and other objects and ad vantages in view, the invention consists in the details of construction to be hereinafter more fully described and claimed, and illustrated in the accompanying drawings in which Figure 1 is a side elevation of my device, showing it holding a fuse,

Fig. 2 is an elevation at right angles to Fig. 1,

Fig. 3 is an end view with the cartridge in gripped position,

Fig. 4 is a similar view showing the handle member moved to permit disengagement of the device from the fuse,

Fig. 5 is a detail longitudinal sectional view showing the means for locking the head of the device upon thehandle, and

F 1g. 6 is a detail cross sectional view.

Referring more particularly to the draw ings, the numeral 10 designates a handle which may conveniently be a wooden pole and which is of any desired length. Secured upon one end of this handle is a ferrule 11 which hasits outer end reduced or flattened on two sides, as shown at 12, and which has secured upon its extremity a plate 13 dovetailed in cross section. At one end this plate is provided with a hole 14 within which is slidably engaged one leg of a right angular shaped. pin. 15 which has its other leg selectively engageable within notches 16 andl'? in the ferrule. The purpose of this pin will be hereinafter explained.

The numeral 18 designates the head of the device as a whole and this head includes a base portion 19 disposed upon the plate. 18

and provided with side flanges 2O engaging the dove-tailed edges of the plate whereby the head will he slidably associated with the This head further includes spaced plate. cars 21 which are formed with openings 22 extending to one edge, the opening in one ear extending to the edge opposite the edge to which the opening in the other car extends.

Disposed centrally of the head 18 and pivotally connected therewith, as by a bolt 23, is a spring clip 24, which includes spaced curved arms 25 adapted to receive and hold a cartridge fuse A. The base portion of the head is provided with a hole 26 within which the first mentioned leg of the pin 15 may be engaged for locking the head against slidable movement upon the plate 13. When the pin is in this locking position its other leg is engaged within the notch 16. It is preferable to provide a small spring 27 which normally holds the pin in such locking position.

The operation of the device is as follows:

The clip 24 being so disposed that its arms 25 are parallel with the ears 21 the operator grasps the handle and moves the device so that the clip 24 is engaged upon the fuse to be removed. He then rotates the handle and consequently the head so that the ears 21 will engage the fuse at the sides of the clip 24, the openings in the ears being in reverse position, ermitting this action. The operator then pulls upon the device and thereby disengages the fuse from its contacts.

When it is desired to insert another fuse the reverse operation is followed. It will be seen that there is no necessity for the operator to place his hands anywhere near the contacts and the device will therefore conduce to safety, especially as these fuses are used in high power circuit.

The purpose of mounting the head 18 slidably upon the plate 13 so that it may be detached, is that the head 18 and clip 2 1 must be of different sizes for handling cartridge fuses of different sizes and in actual practice it is apparent that a plurality of the heads would be furnished for each handle'so that the necessary changes may be made. By disengaging the locking pin 15 from the notch 16 and pressing it into the notch 17, the pin will be withdrawn'from the hole 26 in the head so that the head may be removed and replaced by another of a different size.

While I have shown and described the preferred embodiment of my invention, it is of course to be understood that I reserve the right to make such changes in the form, construction, and arrangement of parts as will. not depart from the spirit of the invention or the scope of the subjoined claims.

Having thus described my invention, I claim:

1. A device of the character described comprising a handle, a head carried thereby and including spaced ears provided with openings extending to one edge, said opening being arranged reversely, and a clip rotatably mounted upon the head between said.

ears.

2. A device of the character described comprising a handle, a head carried thereby and including spaced ears provided with openings extending to one edge, said opening being arranged reversely, and a clip rotatably mounted upon the head between said ears, said head being detachably connected with the handle whereby to permit replacement thereof by a head of a different size.

3. A device of the character described comprising a handle, a plate secured upon one end thereof, a head slidably engaged upon said plate, means for locking said head upon said plate, said head including spaced ears provided with openings extending to one edge with the openings arranged in reversed relation, and a spring clip pivotally mounted upon the head between the ears.

4. A device of the character described comprising a handle, a ferrule upon one end thereof and carrying a plate, said plate being provided with a hole and the ferrule being provided with notches, an angular locking pin slidable through said hole and selectively engageable within said notches, a head slidably engaged upon said plate and having a hole into which said pin may be projected for locking the head, and means garried by said head for gripping a cartridge ruse.

5. A device of the character described comprising a handle, a U-shaped head carried therebyand having its arms formed with reversely arranged openings, and a clamping member rotatably mounted within said head.

In testimony whereof I afiiX my signature.

PAUL R. OLIVER. 

